The Double Leg Pull aka the Double Leg Stretch in the Pilates ab series is also probably THE Pilates exercise that preps you for ALL Pilates exercises.
Try This: Double Straight Leg Stretch - ABC Fitness Studio
10 Minute Ab Workout
Yes, Pilates does make you super strong but let's not forget about
How to Do a Double Leg Stretch in Pilates - Howcast
How To Do Pilates at Home 16 Easy Pilates Exercises
Active Prenatal Reformer with Courtney Miller - Class 2698
11 - Double Leg Stretch - Rollpilates
How To ADAPT Pilates Exercises To The Person In Front Of You
Double Straight Leg Stretch with Meredith Rogers - Exercise 1805
Return to Life: #7 Double Leg Stretch
Double Leg Stretch - Exercise How-to - Skimble Workout Trainer
Connecting to your Reformer with Lesley Logan - Class 2829
Double Leg Stretch on the Mat
Double Leg Stretch with Swiss Exercise Ball
A Beginner's Guide to Wall Pilates Double Leg Stretch - BetterMe